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marlin/sailfish: fix MediaProvider using 100% CPU

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- by disabling mtp over functionfs
- affects both GrapheneOS and LineageOS
- might need to be applied to other devices

[pid  2482] ppoll([{fd=42, events=POLLIN}, {fd=51, events=POLLIN}], 2, {tv_sec=0, tv_nsec=0}, NULL, 0) = 0 (Timeout)
lrwx------ 1 u0_a13 u0_a13 64 2019-09-05 18:47 42 -> /dev/usb-ffs/mtp/ep0
lrwx------ 1 u0_a13 u0_a13 64 2019-09-05 18:47 51 -> anon_inode:[eventfd]

https://forum.xda-developers.com/android/help/pixel2-help-diagnose-android-process-t3863274
https://bugs.chromium.org/p/chromium/issues/detail?id=947901
This commit is contained in:
Tad 2019-09-06 09:38:01 -04:00
parent 1a7291aa36
commit 09b38c1f04
6 changed files with 93 additions and 5 deletions
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3
Scripts/LineageOS-15.1/Patch.sh
View file

@ -196,6 +196,9 @@ if [ "$DOS_HOSTS_BLOCKING" = false ]; then echo "PRODUCT_PACKAGES += $DOS_HOSTS_
#
#START OF DEVICE CHANGES
#
enterAndClear "device/google/marlin";
patch -p1 < "$DOS_PATCHES/android_device_google_marlin/0001-Fix_MediaProvider_Deadlock.patch"; #Fix MediaProvider using 100% CPU (due to broken ppoll on functionfs?)
enterAndClear "device/lge/g2-common";
sed -i '3itypeattribute hwaddrs misc_block_device_exception;' sepolicy/hwaddrs.te;

3
Scripts/LineageOS-16.0/Patch.sh
View file

@ -190,6 +190,9 @@ echo "PRODUCT_PACKAGES += vendor.lineage.trust@1.0-service" >> packages.mk; #All
#
#START OF DEVICE CHANGES
#
enterAndClear "device/google/marlin";
patch -p1 < "$DOS_PATCHES/android_device_google_marlin/0001-Fix_MediaProvider_Deadlock.patch"; #Fix MediaProvider using 100% CPU (due to broken ppoll on functionfs?)
enterAndClear "device/lge/g2-common";
sed -i '3itypeattribute hwaddrs misc_block_device_exception;' sepolicy/hwaddrs.te;